Random electric field strength distribution in lead-free relaxor ferroelectrics caused by barium content-Reference-Cited by-同舟云学术

Random electric field strength distribution in lead-free relaxor ferroelectrics caused by barium content

Published:2020-02-14 Issue:03 Volume:13 Page:2050012
ISSN:1793-6047
Container-title:Functional Materials Letters
language:en
Short-container-title:Funct. Mater. Lett.

Author:

Dul’kin Evgeniy¹²,Zhai Jiwei¹²,Roth Michael¹²

Affiliation:

1. Department of Applied Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

2. Functional Materials Research Laboratory, Tongji University, Shanghai 200092, P. R. China

Abstract

Curie temperature behavior of BaxSr[Formula: see text]TiO3 ferroelectrics ceramic ([Formula: see text]) in dependence on bias field is detected by means of acoustic emission. Curie temperature exhibits nontrivial V-shape effect with threshold field of 0.3[Formula: see text]kV/cm, equivalent to random electric fields strength. This random field strength is compared with those in BaxSr[Formula: see text]TiO3 relaxor ferroelectrics ([Formula: see text], 0.7, 0.8) obtained previously, as well as with those determined from mean domain sizes in BaxSr[Formula: see text]Nb2O6 relaxor ferroelectrics ([Formula: see text], 0.39, 0.6). It is estimated that the random field strength of Ba[Formula: see text]Sr[Formula: see text]TiO3 is 30 times stronger than those of Ba[Formula: see text]Sr[Formula: see text]Nb2O6 and it is shown that the random field strengths of both BaxSr[Formula: see text]TiO3 and BaxSr[Formula: see text]Nb2O6 obey the same exponential law in dependence on barium content.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Materials Science

Link

https://www.worldscientific.com/doi/pdf/10.1142/S1793604720500125

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